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vtkImageBSplineInterpolator.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkImageBSplineInterpolator.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
39 #ifndef __vtkImageBSplineInterpolator_h
40 #define __vtkImageBSplineInterpolator_h
41 
42 #include "vtkImagingCoreModule.h" // For export macro
43 #include "vtkAbstractImageInterpolator.h"
44 
45 #define VTK_IMAGE_BSPLINE_DEGREE_MAX 9
46 
47 class vtkImageData;
48 struct vtkInterpolationInfo;
49 
50 class VTKIMAGINGCORE_EXPORT vtkImageBSplineInterpolator :
51  public vtkAbstractImageInterpolator
52 {
53 public:
54  static vtkImageBSplineInterpolator *New();
55  vtkTypeMacro(vtkImageBSplineInterpolator, vtkAbstractImageInterpolator);
56  virtual void PrintSelf(ostream& os, vtkIndent indent);
57 
59 
62  void SetSplineDegree(int degree);
63  int GetSplineDegree() { return this->SplineDegree; };
64  int GetSplineDegreeMinValue() { return 0; }
65  int GetSplineDegreeMaxValue() { return VTK_IMAGE_BSPLINE_DEGREE_MAX; }
67 
73  virtual void ComputeSupportSize(const double matrix[16], int support[3]);
74 
77  virtual bool IsSeparable();
78 
80 
87  virtual void PrecomputeWeightsForExtent(
88  const double matrix[16], const int extent[6], int newExtent[6],
89  vtkInterpolationWeights *&weights);
90  virtual void PrecomputeWeightsForExtent(
91  const float matrix[16], const int extent[6], int newExtent[6],
92  vtkInterpolationWeights *&weights);
94 
96  virtual void FreePrecomputedWeights(vtkInterpolationWeights *&weights);
97 
98 protected:
99  vtkImageBSplineInterpolator();
100  ~vtkImageBSplineInterpolator();
101 
103  virtual void InternalUpdate();
104 
106  virtual void InternalDeepCopy(vtkAbstractImageInterpolator *obj);
107 
109 
110  virtual void GetInterpolationFunc(
111  void (**doublefunc)(
112  vtkInterpolationInfo *, const double [3], double *));
113  virtual void GetInterpolationFunc(
114  void (**floatfunc)(
115  vtkInterpolationInfo *, const float [3], float *));
117 
119 
120  virtual void GetRowInterpolationFunc(
121  void (**doublefunc)(
122  vtkInterpolationWeights *, int, int, int, double *, int));
123  virtual void GetRowInterpolationFunc(
124  void (**floatfunc)(
125  vtkInterpolationWeights *, int, int, int, float *, int));
127 
129  virtual void BuildKernelLookupTable();
130 
132  virtual void FreeKernelLookupTable();
133 
134  int SplineDegree;
135  float *KernelLookupTable;
136 
137 private:
138  vtkImageBSplineInterpolator(const vtkImageBSplineInterpolator&); // Not implemented.
139  void operator=(const vtkImageBSplineInterpolator&); // Not implemented.
140 };
141 
142 #endif
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